diallel
nounEtymology From Ancient Greek.
1
A set of all possible pairs of items from a specified set of items, especially when used for a study of diallel crosses.
- Pollinations in 1956 and 1957 produced seed for eight replications of all 78 combinations of a complete half diallel, excluding selfs.1978, E. B. Snyder, Gene Namkoong, Inheritance in a Diallel Crossing Experiment with Longleaf Pine, page 2:
- However, complex gene action involving nonallelic interaction was found in the original 6×6 diallel.1991, Rice Genetics II, page 287:
1 more example
- In a diallel, a set of genotypes are crossed in all possible combinations.2012, H.K. Jain, M.C. Kharkwal, Plant Breeding: Mendelian to Molecular Approaches, page 526:
2
A form of logical fallacy in which a proposition that is required to prove another proposition can only be proved by means of assuming the truth of the proposition one is trying to prove; circular reasoning.
- Fifth is the diallel (ó διάλληλος τρóπος)—petitio principii—the fallacy of circle, or the method of showing that a proof which is employed to establish the truth of a proposition, can itself only be proved by the proposition in question: as for example, "if anyone should infer the authenticity of a certain history, from its recording such and such facts, the reality of which rests on the evidence of that history."1871, Thomas Woodhouse Levin, Six Lectures Introductory to the Philosophical Writings of Cicero, page 110:
- In particular, Huet is said to apply the five tropoi of Agrippa (viz. relativity, diaphonia or disagreement, hypothesis or begging the question, infinite regress, and diallel or circular argument) to the cogito, the criterion of clarity and distinctness, and the proofs of the existence of God.2008, Thomas M. Lennon, The Plain Truth: Descartes, Huet, and Skepticism, page 50:
1 more example
- This reminds us of what Sextus calls a diallel. A diallel is a situation where we need a in order to “prove” b and b in order to “prove” a (PH, I, 169), so that we can’t prove anything.2017, Jannis Kozatsas, Georges Faraklas, Stella Synegianni, Hegel and Scepticism: On Klaus Vieweg's Interpretation, page 47:
- Derived terms
- diallelous